undergrown vs wee

undergrown

adj
  • insufficiently grown; not having grown to a normal or suitable size. 

wee

adj
  • Small, little. 

  • You looked a little cold, so I lit a wee fire. 

verb
  • To urinate. 

noun
  • A short time or short distance. 

  • Urine. 

  • An act of urination. 

How often have the words undergrown and wee occurred in a corpus of books? (source: Google Ngram Viewer )